57
6
Periodic Maintenance
This type of air-conditioner does not require any particular
periodic maintenance operations apart from:
a) cleaning the internal unitis air filter each time the
respective LED lights up (See the Useris Instructions
Handbook),
b) cleaning the external unitis battery once a year at the
beginning of the season in which it is to be used (twice
a year for heat pump appliances, that is, before the
beginning of the heating season and that of the cooling
season). For further information on this operation see
the Useris Instructions Handbook.
Possible cooling leaks are indicated by the fouling of oil
which appears at the leakage point (most of the time leaks
come from the joints).
If the oil foulings correspond, the chargeis consistency must
be checked in accordance with the instructions given in the
Technical Handbook.
If the charge is proven scarse (still following the instructios
given in the Technical Handbook):
a) Identify and eliminate the leakage,
b) Reset the charge.
In order to locate and repair damages of a more serious
nature (compressor burn-out, solenoid valve burn-out, etc.)
call the Service Department.
7
Conclusion
Before leaving the installation site collect the wrappings and
use a damp cloth to remove any traces of dirt which were left
on the appliance during assemblage (fig. 23).
Obviously the above is not strictly necessary, however, in
the eyes of the user it demonstrates a certain professionalism
on the part of the fitter.
In order to avoid unnecessary phone calls by the user,
before leaving the installation site:
a) Illustrate the contents of the Useris Instructions Handbook
to the user,
b) Illustrate the method used for cleaning the external
unitis filter and battery
c) Clarify when and how the Service Department should be
contacted.
Fig. 23
